Fluid pump



FIG. 1 is a perspective view of a fluid pump showing my new design;

FIG. 2 is a front view of a fluid pump showing my new design;

FIG. 3 is a side view of a fluid pump showing my new design;

FIG. 4 is a back view of the fluid pump showing my new design;

FIG. 5 is a top view of the fluid pump showing my new design; and,

FIG. 6 is a bottom view of the fluid pump showing my new design. 

The ornamental design for a fluid pump, as shown and described. 